certification - empire engineering · 2019. 10. 15. · dnvgl-se-0263 certification of lifetime...
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DNV GL © 27 August 2019 SAFER, SMARTER, GREENERDNV GL ©
D Butterworth
1st October 2019
ENERGY
Certification
1
Foundation Ex Conference
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DNV GL © 27 August 2019
DNV GL service documents
2
Complete certification system for the renewables industry
• DNV GL Certification Scheme
• IEC Certification Scheme• Onshore Wind
• Offshore Wind
• Offshore Substations
• Floating Offshore Wind
• Solar Power Plants
• Energy Storage Systems
• Tidal & Wave devices and arrays
Concept Prototype Type Project In placeLifetime
extension>30 DNV GL service
documents
• Design Ass.
• Manufacture
• Survey
• In service
• Lifetime
• Component
certification
• GCC
• Shop
approvals
• Training
• Fire
protection
• Markings
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DNV GL © 27 August 2019
DNV GL service documents (39No.)
3
Service specifications
DNVGL-SE-0441 Type and component certification of wind turbinesDNVGL-SE-0190 Project certification of wind power plantsDNVGL-SE-0074 Type and component certification of wind turbines according to IEC 61400-22 DNVGL-SE-0073 Project certification of wind farms according to IEC 61400-22DNVGL-SE-0436 Shop approval in renewable energyDNVGL-SE-0439 Certification of condition monitoringDNVGL-SE-0077 Certification of fire protection systems for wind turbinesDNVGL-SE-0263 Certification of lifetime extension of wind turbines
DNVGL-SE-0448 Certification of service and maintenance activities in the wind energy industryDNVGL-SE-0176 Certification of navigation and aviation aids of offshore wind farmsDNVGL-SE-0420 Certification of meteorological mastsDNVGL-SE-0422 Certification of floating wind turbinesDNVGL-SE-0078 Project certification of photovoltaic power plantsDNVGL-SE-0163 Certification of tidal turbines and arraysDNVGL-SE-0120 Certification of wave energy devices and arraysISI Development of third party services for energy storage systems
Standards
DNVGL-ST-0376 Rotor blades for wind turbinesDNVGL-ST-0437 Loads and site conditions for wind turbinesDNVGL-ST-0438 Control and protection systems for wind turbinesDNVGL-ST-0126 Support structures for wind turbinesDNVGL-ST-0361 Machinery for wind turbinesDNVGL-ST-0054 Transport and installation of wind power plantsDNVGL-ST-0262 Lifetime extension of wind turbines
DNVGL-ST-0119 Floating structures for wind turbinesDNVGL-ST-0145 Offshore substationsDNVGL-SE-0124 Certification of grid code complianceDNVGL-ST-0125 Grid Code ComplianceDNVGL-ST-0076 Electrical installations for wind turbinesDNVGL-ST-0359 Subsea power cablesDNVGL-ST-0164 Tidal turbines
Recommended practices
DNVGL-RP-0175 Icing of Wind Turbines
DNVGL-RP-0363 Extreme temperature conditions for wind turbinesDNVGL-RP-0416 Corrosion protection for wind turbinesDNVGL-RP-0440 Electromagnetic compatibility of wind turbines
DNVGL-RP-0423 Manufacturing and commissioning of offshore substationsDNVGL-RP-0419 Analysis of grouted connectionsDNVGL-RP-0360 Subsea power cables in shallow waterDNVGL-RP-0171 Testing of rotor blade erosion protection systemsDNVGL-RP-0286 Coupled analysis of floating wind turbines
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DNV GL © 27 August 2019
DNV GL system of interlinked standards
4
DNVGL-ST-0119
Design of FWT
structures
DNVGL-ST-0126
Support Structures
for WT
*
* The requirements for the structural design given in DNVGL-ST-0126 apply to
FWT structures, except the deviations and additional requirements given in
DNVGL-ST-0119 Section 7
DNV-OS-C401
Fabrication. and testing
of offshore structures
Manufacturing of
steel components
Buckling stability
of plates
e.g. girders
DNV-RP-C201
Buckling strength
of Plated Structures
DNVGL-RP-C203
Fatigue design of offshore
steel structures
Fatigue
DNVGL-OS-C103
Structural Design of
Column Stabilized
Units
DNVGL-RP-C103
Column Stabilized
Units
Semi-submersibles
EN 1993-1-1,-8
Eurocode 3: Design
of steel structures
Capacity and
buckling checks
ULS
DNVGL-RP-C208
nonlinear FEM
Plastic
deformation
Example structural design of
floating wind turbine structures
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DNV GL © 27 August 2019
Service document maintenance
5
Maintenance 2019
ST-0145 Offshore Substations
SE-0439 Certification of condition monitoring
SE-0190 Project certification
Planned maintenance in 2020
• Grid code compliance requirements• Machinery components for wind turbines• Type certification• Corrosion Protection
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DNV GL © 27 August 2019
Jan/ 14 Jan/ 15 Jan/ 16 Jan/ 17 Jan/ 18 Jan/ 19 Jan/ 20 Jan/ 21 Jan/ 22
SE-0074 Type and component certification of wind turbines according to IEC 61400-22
SE-0073 Project certification of wind farms…
SE-0441 Type and component certification of wind turbines
SE-0190 Project certification of wind power plants
ST-0376 Rotor blades for wind turbines
ST-0126 Support structures for wind turbines
ST-0438 Control and protection systems for wind turbines
ST-0437 Loads and site conditions wind for turbines
ST-0361 Machinery for wind turbines
ST-0076 (Design of) electrical installations for wind turbines
ST-0054 Transport and installation of offshore wind turbines
ST-0145 Offshore substations
ST-0359 Subsea power cables
RP-0416 Corrosion protection of offshore wind turbines
SE-0263 Certification of lifetime extension of wind turbines
ST-0262 Lifetime extension of wind turbines
SE-0439 Certification of condition monitoring
SE-0124 Certification of Grid Code Compliance
ST-0125 Grid Code Compliance
SE-0422 Certification of floating wind turbines
ST-0119 Floating structures for wind turbines
RP-xxxx Coupled analysis of floating wind turbines
SE-0077 Certification of Fire Protection Systems for Wind Turbines
Certification of Training Systems
SE-0448 Certification of service and maintenance activities in the wind energy industry
SE-0436 Shop approval in renewable energy
SE-0420 Certification of meteorological masts
SE-0176 Certification of navigation and aviation aids for offshore plants
RP-0440 Electromagnetic compatibility of wind turbines
GL TN Rev.0 Tropical Cyclone Conditions for Wind Turbines
RP-0363 Extreme climatic conditions for wind turbines
RP-0419 Analysis of grouted connections
RP-0175 Icing of Wind Turbines
RP-0171 Testing of rotor blade erosion protection systems
GL IV 3 Richtlinie zur Erstellung von technischen Risikoanalysen für Offshore-Windparks
RP-0360 Subsea power cables in shallow water
RP-0423 Manufacturing and Commissioning of Offshore Substations (OSS)
SE-0078 Project certification of photovoltaic power plants
SE-0163 Certification of tidal turbines and arrays
SE-0120 Certification of wave energy devices and arrays
ST-0164 Tidal turbines
Development minor update major update
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DNV GL © 27 August 2019
WTG Foundation Design DNVGL-ST-0126 & associated standards
▪ Bolted Connection Design – (new RP in progress)
▪ Early Age Cycling – (Reviewing options for possible JIP)
▪ Earthquake – (ACE JIP due to commence)
▪ ALS for projects with SOV
▪ Damping improved guidance for jackets
▪ Multiaxial stresses and fatigue
▪ SN Curves and automated welding
▪ Probabilistic Design Methods
▪ Inspection & Reliability Guidance
▪ Steel Material Tables – alignment with EN 1993 and 10225
7
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DNV GL © 27 August 2019
DNVGL-ST-0145 Update 2019
8
Formal Safety Assessment
Clarifications on requirements. Overall safety will be achieved is prescriptive requirements are met. If not then a Risk Based Assessment is required
Arrangement Principles
Removal or requirement for 2 Transformers, focus on availability, N-1 criteria must be met
Structural Design
Air gap to apply to 100year wave 1m or 20% Hs100. ALS to 10k wave crest. Steel Table updated to reflect new 10225 update
Electrical Design
Islanded condition clarifications, Not automatically an emergency, emergency services must remain available for seven days, For Manned – Aux power autonomous, for unmanned external source acceptable
Fire and Explosion Protection
More details on materials and requirements for both passive and active systems
Emergency Response
Clarifications on provisions for Manned & Unmanned facilities and requirements
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DNV GL © 27 August 2019
DNV GL service documents to come
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DNVGL-RP-xxxx Design requirements for wind turbines in seismic and cyclone areas – ACE JIPDNVGL-RP-xxxx LIDAR based turbulence intensity measurement – LIDAR-TI JIP
DNVGL-RP-xxxx Comprehensive model for rain erosion analysis - JIP COBRA DNVGL RP-xxxx Superconducting drivetrains of wind turbines – EcoSwing (EU H2020 project)DNVGL-RP-xxxx Scour protection – HaSPro JIPDNVGL-RP-xxxx Energy storage system safety - tbdDNVGL-RP-xxxx Bolted Connections
Development of new services and standards via JIP’s or collaborative projects with industry partners and academia
• Meet customers/market expectations
• Use best technology available
• Drive improvements in design approach and lower costs
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DNV GL © 27 August 2019
Backgrounds and pains –design of offshore wind turbines in new markets
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❑ Earthquakes
❑ Uncertainty in design conditions: geotechnical conditions,
combination of wind and earthquake loads.
❑ Inconsistency in approaches used to design for
Earthquakes.
❑ International/Local codes & standards not sufficiently
detailed/harmonized
❑ Cyclones
❑ Uncertainty in extreme wind speed.
❑ Uncertainty in transferring local building code
requirements to large offshore turbines
❑ Detailed modelling is expensive and uncertain.
❑ Lack of measurements available for calibration/verification
of detailed models.
❑ Statistical treatment is difficult.
Interested? Please contact us!marcus.klose@dnvgl.com --- lars.klett@dnvgl.com
mailto:marcus.klose@dnvgl.commailto:lars.klett@dnvgl.com
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DNV GL © 27 August 2019
Tower Bolts
Wind Turbine Towers
11
Source:www.renewablesnow.com
Source:www.windaction.org
Design Assumptions vs Execution
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DNV GL © 27 August 2019
Short term preload losses
12
Preload loss, 12 hours(Yield Controlled tightening)
Average bolt preload loss m 0%
Worst case bolt preload loss (97.7% value) -15%
Preload loss, 12 hours (Torque/Angle tightening)
Average bolt preload loss m -0.1%
Worst case bolt preload loss (97.7% value) -21%
Preload loss, 12 hours (Hydraulic tensioning)
Average bolt preload loss m -1%
Worst case bolt preload loss (97.7% value) -23%
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DNV GL © 27 August 2019
Scatter diagram preload vs gap
13
R² = 0.0251
Bo
lt L
oad
[kN
]
Vertical Gap Outer Flange [mm]
R² = 0.6688
R² = 0.5571
R² = 0.4225
Bo
lt L
oad
Var
iati
on
[kN
/30
de
gre
es]
Gap Variation [mm/30 degrees]
Mean Values Minimum Values Maximum Values
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DNV GL © 27 August 2019
Veracity - an Open Industry Platform
Wind Turbine Towers
14
• Marketplace for digital services, data and analytics• Functionality to securely share your data container• Functionality to create a data container for your data
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DNV GL © 27 August 2019
MyCertificate
Wind Turbine Towers
15
• See at a glance what has been certified and what hasn’t• Instantly check certification status of all components in a new
configuration• Self-generated certificate includes QR codes for verifying their
authenticity
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DNV GL © 27 August 2019
Assessment of secondary steel components for wind turbines by stp-files
Wind Turbine Towers
16
Development of an online visualization and communication tool for the exchange of certification comments
Change in the internal certification process from technical drawings to the use of stp- or gnx-files for basis of parallel calculation
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DNV GL © 27 August 2019
SAFER, SMARTER, GREENER
www.dnvgl.com
The trademarks DNV GL®, DNV®, the Horizon Graphic and Det Norske Veritas®
are the properties of companies in the Det Norske Veritas group. All rights reserved.
Thanks for Listening – any ideas for future improvements and/or feedback please get in touch
17
Daniel.butterworth@dnvgl.com
+44 7825 50 5854
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